True vegetables are not derived from
a. fruits.
b. leaves.
c. roots.
d. stems
A
You might also like to view...
A cell biologist produces a karyotype of mouse somatic cells arrested in mitosis. She sees 40 chromosomes, which is completely normal for mice. Based on this information, what is the haploid number of chromosomes for mice?
A. 10 B. 20 C. 40 D. 80 E. It cannot be determined from the information provided Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about diploid cells? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of these stages were a focus of study for Miller and Urey in their FIRST experiment?
Study of the origin of life has resulted in the breakdown of cellular development into overlapping stages, beginning with the synthesis of precursor molecules for the synthesis of nucleotides and amino acids and ending in polymers enclosed in membranes acquiring cellular properties. A. Stage 1: Nucleotides and amino acids were produced prior to the existence of cells. B. Stage 2: Nucleotides became polymerized to form RNA and/or DNA, and amino acids became polymerized to form proteins. C. Stage 3: Polymers became enclosed in membranes. D. Stage 4: Polymers enclosed in membranes acquired cellular properties. E. Stage 5: Ribosomes were developed inside the membrane.
Ions cannot cross myelin, so a myelinated axon undergoes action potentials only at:
a. nodes b. junctions c. sheathed areas d. axon terminals e. axon trigger zone
Select the best choice below to match statements 135–137
a. surgical correction b. chemotherapy c. genetic screening d. genetic counseling e. gene therapy M 135. Identification of persons with sickle-cell anemia can be done by this method. M 136. Once the risks have been determined, this method is an effective way of dealing with a genetic disorder prior to its occurrence in a child. M 137. The substitution of a normal allele for a defective allele via the methods of genetic engineering would be an example of this.